n00b;
Any place that you find your powder and wads will most likley have data, all you can stand. I have books from the powder and wad manufacturers that date back into the 70's. I use that data as the most reliable available. I think the folks who actually make the powder and wads aught to be the ones who best know what works and how much you need. There is good data at the Hodgdon web site as well as Alliant. I've not looked at IMR or others since I do have thier current (2003) data books. Go to the grafs site. They have links to all the sites I've mentioned. Some of the sites are a bit confusing finding the data, but it is usually there. I know I had to do some experimental brousing at the Hodgdon site a couple times before I found what I was looking for. It was there, I just had to figure out how to get to it! Go to your local reloading supply store and I'll bet he has all the free booklets you would ever want! Especialy if you are loading the AAs, the most popular shotgun hull for loading EVER! It is slipping, but if you are in the powder or primer or wad business, the first hull you work with is the AA. "Seek and ye shall find, Knock and it shall be opened unto you!" What you are looking for is both plentifull and free!
BP